How to play sounds loaded on the fly

Question

I trying to make a tool for the sound designer of my group that would allow him to hear his sound file played in Unity.

• Check if it's loadable
• Check if the volume is right
• Check if loops properly

and so on ...

My issue is to find how Unity can manage loading audio files laying somewhere in a folder.

I found a lot of topics speaking about it but no real solutions to how you can make Unity load external files dynamically.

Solution

If you want to load files from the same directory as the .exe / .app you can use this :

• Using the System.IO DirectoryInfo() to get all files names
• Using the WWW class to stream/load the files found

Here the code :

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.IO;

public class SoundPlayer : MonoBehaviour {

    string absolutePath = "./"; // relative path to where the app is running

    AudioSource src;
    List<AudioClip> clips = new List<AudioClip>();
    int soundIndex = 0;

    //compatible file extensions
    string[] fileTypes = {"ogg","wav"};

    FileInfo[] files;

    void Start () {
        //being able to test in unity
        if(Application.isEditor)    absolutePath = "Assets/";
        if(src == null) src = gameObject.AddComponent<AudioSource>();
        reloadSounds();
    }

    void reloadSounds() {
        DirectoryInfo info = new DirectoryInfo(absolutePath);
        files = info.GetFiles();

        //check if the file is valid and load it
        foreach(FileInfo f in files) {
            if(validFileType(f.FullName)) {
                //Debug.Log("Start loading "+f.FullName);
                StartCoroutine(loadFile(f.FullName));
            }
        }
    }

    bool validFileType(string filename) {
        foreach(string ext in fileTypes) {
            if(filename.IndexOf(ext) > -1) return true;
        }
        return false;
    }

    IEnumerator loadFile(string path) {
        WWW www = new WWW("file://"+path);

        AudioClip myAudioClip = www.audioClip;
        while (!myAudioClip.isReadyToPlay)
        yield return www;

        AudioClip clip = www.GetAudioClip(false);
        string[] parts = path.Split('\\');
        clip.name = parts[parts.Length - 1];
        clips.Add(clip);
    }
}

[EDIT]

If people wants to improve on the file management I recommend this link

Comments

[Joetjah]

So, how do you 'Check if loops properly'? If you are going to answer your own question, please do so completely.

[Max Yankov]

I think that it's better to use Path.Combine ( msdn.microsoft.com/ru-ru/library/vstudio/fyy7a5kt(v=vs.90).a‌​spx ) to avoid platform-dependence.

[StackUnder]

@Joetjah OP stated that the issue was only to find how Unity could manage loading audio files